2. Functional Requirements
Transcript of 2. Functional Requirements
JulySeptemberNovemberMay 2009March May January 2011July 2010 doc.: IEEE 802.11-09/00000451r1612151488123
IEEE P802.11Wireless LANs
TGac Functional Requirements and Evaluation Methodology Rev. 161514128231
Date: 20091110-010705031109576-191420181721130069
Authors and Contributors(s):Name Company Address Phone Email
Peter Loc Ralink Technology20833 Stevens Creek Blvd, Suite 200., Cupertino CA 95014
408 807-0868
Minho Cheong
ETRI 161 Gajeong-dong, Yuseong-gu, Daejeon, Korea
+82 42 860 5635
ABSTRACT
This document describes the functional requirements and the evaluation methodology for Tgac. These requirements are derived from the document “11-08-0807-04-0vht-below-6-ghz-par-nescom-form-plus-5cs”. All proposals submitted in response to the IEEE802.11 TGac call for The proposalamendment must address the functional requirements that are shown as mandatory in this document.
ContributorsThis will grow to reflect those providing explicit contributions / review comments of this document. (Please let either Peter orand Minho know if any name we have missed any name is conspicuously missing from this list.)Name Company Address Phone Email
Eldad Perahia Intel Corporation [email protected]
Robert Stacey Intel Corporation robert 1 tacey [email protected] Michelle X. Gong Intel Corporation [email protected]
Vinko Erceg Broadcom [email protected] Fischer Broadcom [email protected]
VK Jones Qualcomm Inc. [email protected] Abraham Qualcomm Inc. [email protected]
Allan Zhu Samsung [email protected] Shi Atheros Comm. Inc. [email protected]
Yashusi Takadori NTT takatori,[email protected] Asai NTT [email protected]
Sudheer Grandhi InterDigital Comm. [email protected] Morioka Sony [email protected]
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Brian Hart Cisco Systems [email protected] Myles Cisco Systems [email protected] Engwer Self [email protected]
Revision HistoryRevision Comments Date0304r0 Peter and Minho initial contribution on Functional Requirements 13 March 2009R0 Evaluation Methodology and Simulation Scenario are included 10 April 2009R1 Revised by conference call discussions on April 9 and April 23. 09 May 2009R2 Revised by Montreal Interim discussions on May 11-15. 28 May 2009R3 Revised by conference call discussions on May 28 13 July 2009R4 Revised by San Francisco Plenary discussions on July 14 16 July 2009R5 Shadowing term in PHY channel is TBD for further discussions 16 July 2009R6 Minor editorial changes 16 July 2009R7 Some changes in Abstract (approved) 16 July 2009R8 Added enterprise simulation scenario with OBSS (approved) 17 November 2009R12 Added in-home entertainment scenario with OBSS 18 March 2010R14R15
Revert the scenario #3 to that defined in the R8 of the FREMAdded brief comments on PHY abstraction method
20 May 201014 July 2010
R16 Added wall penetration losses for scenario #4 19 January 2011
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1. Overview
This document specifies the functional requirements and the evaluation methodology for TGac as stated in the VHT below 6 GHz PAR Plus 5C’s. The emphasis is on the following aspects of TGac devicesThe functional requirements as stated in this document cover the following aspects of TGac
1. System performance2. Backward compatibility with 802.11a/n devices operating in 5 GHz3. Coexistence with 802.11a/n devices operating in 5 GHz4. Support of mobile devices5. Enhanced power saving6. OBSS operation7. Compliance to PAR
This document also specifies the evaluation methodology for TGac devices.
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2. Functional Requirements
2.1 System Performance
2.1.1 Supporting band
TGac R1 TGac devices operate in 5GHz frequency band.
2.1.1 Multi-STA throughput measured at the MAC SAP to be at least 1 Gbps.
TGac R1 – The TGac amendment shall shall provide at least a mode of operation capable of achieving a maximum Multi-Station aggregate throughput of more than 1 Gbps as measured at the MAC data service access point (SAP), a aggregate throughput of at least 1 Gbps at the top of the MAC data service access points (MAC SAPs) utilizing no more than 80 MHz of channel bandwidth in 5 GHz band.
A typical test scenariomay include multiple STAs that are simultaneously and actively communicating with an AP in 5 GHz band and the measured throughput at the MAC SAP of the AP exceeds 1 Gbps. Note that the PAR gives an example of an AP simultaneously actively-communicating with 3 STAs in the explanatory note. However, the number of STAs may actually be 2 or more in a test set up.
2.1.3 2 Single-STA throughput measured at the MAC SAP to be at least 500 Mbps.
TGac R2 – The TGac amendment shall provide at least a mode of operation capable of achieving a maximum Single-Station throughput of more than 500 Mbps as measured at the MAC data service access point (MAC (SAP), utilizing no more than 80 MHz of channel bandwidth in 5GHz band.
A typical test scenario includes a single STA actively communicating with an AP in 5 GHz band and the measured throughput at the MAC SAP of either the AP or STA exceeds 500 Mbps .
2.1.4 Spectrum efficiency
TGac R4 - The TGac amendment shall demonstrate a mode of operation that achieves a spectral efficiency of at least 12 bps/Hz for the PSDU.
2.1.5 802.11e QoS support
TGac R5 - The proposal shall support the QoS enhancements of the IEEE802.11-2007 within a
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2.1.6 Control of support for 802.11a/n STA from TGac AP
TGac R6 – TGac AP can be configured to reject or accept associations from 802.11a/n STAs.
2.2 Backward Compatibility with 802.11a/n devices operating in 5 GHz
2.2.1 802.11a backward compatibility
Refer to the IEEE Std . 802.15.2-2003, section 3.1 for the definitions of backward compatible.
TGac R7R3- The TGac devices admendment shall provide some modes of operation that are backward compatibilityle .ensure backward compatibility with IEEE802.11a devices operating in the 5 GHz frequency band.
2.2.2 802.11n backward compatibility
TGac R8R4- The TGac admendment shall provide backward compatibility some modes of operation that are backward compatible .with IEEE802.11n devices operating in the 5 GHz frequency band.TGac devices shall ensure backward compatibility with IEEE802.11n devices operating in the 5 GHz frequency band.
2. 3 Coexistence with 802.11a/n devices operating in 5 GHz
Refer to the IEEE Std. 802.15.2-2003, section 3.1 for the definitions of coexistence.
TGac R9 R5 – The TGac amendment shall provide mechanisms that ensure coexistence and fair spectrum sharing between TGac and legacy IEEE802.11a/n devices.The TGac amendment shall provide a mechanism to enable coexistence and spectrum sharing with IEEE802.11a/n devices operating in the same frequency band.
2. 4 Mobile Devices TGac R10 – TGac mobile devices are not required to support requirement R3 (500 Mbps). However, they shall demonstrate a mode of operation that achieves a minimum throughput of 100 Mbps as measured at their MAC SAPs.
2.5 Enhanced Power Saving
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2. 6 OBSS Operation
TGac R1 2 – TGa c devices shall provide a mechanism to enable fair channel access and bandwidth sharing with other devices operating in OBSSFor example, when TGac devices are operating with 802.11a/n and 802.11ac devices in the same, adjacent or overlapping channels, they shall not severely affect the throughput of those devices.
2. 7 4 Compliance to PAR TGac R13 R6 - The proposal complies with the PAR and 5 Criteria [1].
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3 . Evaluation Methodology
The evaluation methodology defines PHY performance, conditions for PAR compliance and a limited set of simulation scenarios and comparison criteria for TGac evaluatation.
As TGac agreed on the approach outlined in the 802.11/09/0376r1, the evaluation methodology for TGac can be build up based on 802.11n one by some modifications.
Each TGac porposal may use a PHY abstraction method. If a PHY abstraction method is used, the method must be described and disclosed.
3 . 1 PHY Performance
3.1.1 PHY channel model
Channel models defined in 802.11n channel model document [8] shall be used. Some modifications to 802.11n channel model are described in [11]. Channel model G for corridor environments will be newly included and AoA and AoD diversity are also considered for TGac [11].
3.1.2 PHY impairments
PHY impairments are updated from ones desribed in 802.11n comparison criteria document [7].
Table 1. PHY impairmentsNumber Name Definition CommentsIM1 PA non-
linearitySimulation should be run at an oversampling rate of at least 24x. To perform convolution of the 24x oversampled transmit waveform with the channel, the channel may be resampled by rounding each channel tap time value to the nearest integer multiple of a sample interval of the oversampled transmit waveform.Use RAPP power amplifier model as specified in document 00/294 with p = 3. Calculate backoff as the output power backoff from full saturation: PA Backoff = 10 log10(Average TX Power/Psat).
Total TX power shall be limited to no more than 17 dBm.
Disclose: (a) EIRP and how it was calculated, (b) PA Backoff, and (c) Psat per PA.
Note: the intent of this IM is to allow different proposals to choose different output power operating points.
Unchanged fron 802.11nAdded comments for higher sampling rate for channel
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Note: the value Psat = 25dBm is recommended.
IM2 Carrier frequency offset
Single-user simulations for all comparisons except Offset Compensation shall be run using a fixed carrier frequency offset of –13.675 ppm at the receiver, relative to the transmitter. The symbol clock shall have the same relative offset as the carrier frequency offset. Simulations shall include timing acquisition on a per-packet basis.
Downlink Mmulti-user simulations for all comparisons except offset compensation shall be run using a fixed carrier frequency offset selected from the array [N(1) ,N(2),……,N(16) ], relative to the transmitter, where N(j) corresponds to the frequency offset of the j-th client and is randomly chosen from [-20,20] ppm with a uniform distribution. We can assume that a maximum of 16 clients may be served simultaneously in a multi-user simulation.
Uplink multi-user simulations for all comparisons except offset compensation shall be run using a fixed carrier frequency offset selected from the array [N(1) ,N(2),……,N(16) ], relative to the receiver, where N(j) corresponds to the frequency offset of the j-th client and is randomly chosen from [-2,2] KHz with a uniform distribution.
Added a set of possible offsets to be used for several STAs. 802.11n specified a single offset of -13.67 ppm
IM34 Phase noise
The phase noise will be specified with a pole-zero model.
PSD(0) = -100 dBc/Hzpole frequency fp = 250 kHzzero frequency fz = 7905.7 kHz
Note, this model results in PSD(infinity) = -130 dBc/Hz
Note, this impairment is modeled at both transmitter and receiver.
Unchanged from 802.11n
IM45 Noise figure
Input referred total noise figure from antenna to output of the A/D will be 10dB.
Unchanged from 802.11n
IM56 Antenna Configuration
The TGn antenna configuration at both ends of the radio link shall be a uniform linear array of isotropic antennas with separation of one-half wavelength, with an antenna coupling coefficient of zero.
All antennas shall have the same vertical polarization.The TGac antennas can beare assumed to either be all vertically polarized or a mix of vertical and horizontal polarizations or dual polarization at ±45 degree, as specified in the TGac channel model addendum document [11]
Mix of vertically and horizontally polarized antennas or dual polarization at ±45 degree is also considered for
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TGac devicesIM6 Fluorosc
ent Light Effects
The fluoroscent light effects specifed in the TGn Channel model shall not be considered for the simulation scenarios.
UM7 Timing Uplink Multi-user simulations shall be run using a fixed timing offset selected from the array [N(1) ,N(2),……,N(16) ], where N(j) corresponds to the time offset of the j-th client transmission with respect to a common time reference and is randomly chosen from [-100,100] ns with a uniform distribution
3.1.3 Comparison criteria
1. PER vs. SNR curvesa. all MCS’sb. Simulate all of channel modelsc. Simulation must include:
i. updated PHY impairmentsii. timing acquisition on a per-packet basisiii. preamble detection on a per-packet basis
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3 . 2 Traffic Models
TGac evaluation shall consider traffic models defined 802.11n usage model documents [3] including high-quality videos for VHT defined in [12] and high-speed file transfer.
Table 2. Traffic modelsNum. Application Offered
Load (Mbps)
Protocol
MSDU Size (B)
Max. PLR
Max. Delay (ms)
Source[ref]
1 Lightly-compressed video
150 UDP TBD 10^-7 10 Motion JPEG2000
2 Lightly-compressed video
200 UDP TBD 10^-7 / 8 20 H.264
3 Compressed video
50Mbps UDP TBD 10^-7 20 Blu-rayTM
43 Compressed videoDV Audio/video
20Mbps28.8
UDPUDP
15001024, Is this true? All other video/audio (SDTV, HDTV) transfers has this parameter set to 1500.
3x10^-710^-7(corresponds to a rate of 0.5 loss/hour) 1
2
20200 HD-MPEG2SD Specifications of Consumer-Use Digital VCRs
Max PLR: 15-03-276r0
54 VoD control channel
0.06 UDP 64 10^-2 100 Guess
5 SDTV 4-5 UDP 1500 5*10^-7 200 16 HDTV
(Video/Audio)
19.2-24 UDP 1500 10^-7 200 1
7 DVD 9.8 peak UDP 1500 10^-7 200 168 Video Conf 0.128 - 2 UDP 512 10^-4 100 179 Internet
Streaming video/audio
0.1 – 4 UDP 512 10^-4 200 1
810 Internet Streaming audio
0.064~0.256
UDP 418 10^-4 200 Group guess
911 VoIP 0.096 UDP 120 5% 30 ITU-T G.114 300ms round-trip delayG.711 Codec
1012 Reserved
1 Note, this corresponds to a loss of a 1024B MSDU per hour. The TS PDU PLR is higher than this. It is not known what is the effect to the decoder of giving it burst packet losses.2 Note, a PLR of 10^-7 will not be measurable in our simulation technologies.
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Other formats are taking over (AAC/MPEG-4, OggVorbis, etc)
0.064 – 0.32
UDP 418 10^-4 200 1
1314.5
Reserved
1415 Content download (photo camera)
minimum 1011Max. 10Mbps
TCP 1500 N/A Corresponds to USB and flash speed
1516 Internet File transfer (email, web, chat)
Minimum 1Max. 10Mbps
TCP 300 N/A
1617 Local File transfer, printing
50minimum 30Max. 1Gbps
TCP 1500 N/A Aps guess
18 Interactive Gaming[Controller to Console x 1]
0.5 UDP 50 10^-4 16 2
19 Interactive Gaming[Console to Display]
100+ UDP 1500 10^-2 10 2video image: 320x240x15 @ 60Hz
20 Interactive Gaming[Console to Internet Access]
*NOTE : Depends on Game Type
1 UDP 512 10^-4 50ms Group consensus
21 Netmeeting application/desktop sharing
0.5 TCP 512 N/A Group guess
1722 Reserved1823 Reserved
1924 Reserved2025 Video phone 0.5 UDP 512 10^-2 100 Aps guess
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interface (X11, Terminal Server Client)(remote display/keyboard/mouse)
0.5-1.5 (peak)
UDP 700 N/A 100 11-03-0696r0
22 Clicking on web link
0.256 TCP 64 N/A desribed in 11-03-0802r23 (pp. 27)
23 Infinite Source Model
Infinite (transmit buffer always full)
TCP 1500 or 1000 or 300
N/A Popular model in network analysis
Rref.) High-quality video service requirements for VHT [12]
Video Compression
Description Rate, Mbps
Packet Error Rate
Jitter, ms
Delay,ms
Uncompressed 720p (RGB): 1280x720 pixels, 24bits/pixels,60frames/s
1300 10^-8 5 5
1080i (RGB): 1920x1080/2pixels, 24bits/pixels,60frames/s
1300 10^-8
1080p (YCrCb): 1920x1080 pixels, 12bits/pixels,60frames/s
1500 10^-8
1080p (RGB): 1920x1080 pixels, 24bits/pixels,60frames/s
3000 10^-8
Lightly Compressed
Motion JPEG2000H.264
15070 - 200
10^-710^-7 / 8
1020
1020
Compressed Blu-ray™ 50 10^-7 20 20
HD MPEG2 20 3x10^-7 20 20
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4 . Simulation Scenarios Simulation scenarios for TGac evaluation are summarized as:
Table 3. Simulation scenarios
Scenario Number
Purpose Note
1 Test compliance to PAR. Single STA 500Mbps throughput at the MAC SAP
2 Test compliance to PAR. Multi STA 1Gbps throughput at the MAC SAP
3 Test backward compatibility to 802.11n.
Single 802.11n STA 100Mbps throughput at the MAC SAP
4 Test backward compatibility to 802.11n with mixed 802.11n and TGac STAs.
Single 802.11n STA at 100Mbps throughput at the MAC SAP + Single TGac STA with 250Mbps throughput at the MAC SAP.
35 In-home entertainment application without OBSS.
Multiple flows with varied QoS requirementsIncludes several lightly-compressed video flows.Aligns with Category 1 and Category 2 applications.
4 In-home entertainment application with OBSS
Multiple flows with varied QoS requirementsIncludes several lightly-compressed video flows.Aligns with Category 1 and Category 2 applications.
546 Enterprise network without OBSS
Stress test for TGac operation.Scenario with large number of flows.Aligns with Category 2 and Category 3 applications.
65 Enterprise network with OBSS
Stress test for TGac operation.Scenario with large number of flows.Aligns with Category 2 and Category 3 applications.
4 . 1 Test for Compliance to PAR
4.1.1 Point-to-point link test (scenario #1)
Synthetic test case to demonstrate single STA 500Mbps throughput at the MAC SAP.This scenario is derived from scenario #19 defind in 802.11n usage model document.
Two stationsOne TGac AP is source.One TGac STA is sink.
Traffic from AP to STA
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Protocol: UDPOffered load : infiniteMSDU size: TBD1500
PHY channel model Model BChannel model B
Locations of stationsFixed locations: (0,0) meters for AP and (0,10)(0,5) meters for STA
Meet requirements in [functional requirements Sections 2.1.23]
4.1.2 Point-to-multi-point link test (scenario #2)
Synthetic test case to demonstrate multi STA aggregated 1Gbps throughput at the MAC SAP.This scenario is also derived from scenario #19 defind in 802.11n usage model document.
Number of stations (AP + STAs): at least 23 TBDFive stationsOne TGac AP is sourceNumber of TGac STAs which are sinks : at least 2Four TGac STAs are sinks
Traffic from AP to STAProtocol: UDPOffered load : infinite
MSDU size: 1500TBDPHY channel model
Model DChannel model BLocations of stations
Fixed locationsMeet requirements in [functional requirements Sections 2.1.21]
Table 4. Flows in scenario #2
Flow No. Source
Source Location(meters) Sink
Channel Model
Sink Location(meters) Application
Bit RateApplication Load (Mbps)
Rate Distribution
MSDU Size (B)
Downlink Flows
1 AP (0,0) STA1 BD (0,10) Data250.00minimum
1000/nN Mbps
Infinite Backlog , UDP TBD1500
2 AP (0,0) STA2 DB (10,0) Data
minimum 1000/nN
Mbps250.00
Infinite Backlog , UDP TBD1500
: :
: :
: :
: :
: :
: :
: :
: :
nN AP (0,0) STA4N DB (-6,-8) Data
minimum 1000/nN
Mbps250.00
Infinite Backlog , UDP TBD1500
Note) Different bit rate can be offered to each flow.
4 . 2 Test for Backward Compatibility to 802.11n
4.2.1 Test for backward compatibility to 802.11n (scenario #3)
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Synthetic test case to demonstrate 100Mbps throughput to a single 802.11n STA at the MAC SAP. This scenario is derived from scenario #18 defind in 802.11n usage model document.
Two stationsOne TGac AP is sourceOne 802.11n STA is sink
Traffic from AP to STAProtocol: UDPMSDU size: 1500
PHY channel modelChannel model B
Locations of stationsFixed locations
Meet requirements in 802.11n functional requirements No. 1 in Section 2 [2].
Flow No. Source
Source Location(meters) Sink
Channel Model
Sink Location(meters) Application
Bit Rate (Mbps)
Rate Distribution
MSDU Size (B)
Max Delay (ms) PLR
Downlink Flows
1 AP (0,0)STA1 (11n) B (0,10) Data 100.00
Constant, UDP 1500 N/A 0
4.2.2 Test for backward compatibility to 802.11n with mix 802.11n and TGac (scenario #4)
Synthetic test case to demonstrate throughput sharing between a 802.11n STA (100Mbps) and a TGac STA (250Mbps). This scenario is derived from scenario #19 defind in 802.11n usage model document.
Three stationsOne TGac AP is source.One TGac STA is sink.One 802.11n STA is sink
Traffic from AP to STAProtocol: UDPMSDU size: 1500
PHY channel modelChannel model B
Locations of stationsFixed locations
Meet requirements in 802.11n functional requirements No. 1 in Section 2 [2].
Flow No. Source
Source Location(meters) Sink
Channel Model
Sink Location(meters) Application
Bit Rate (Mbps)
Rate Distribution
MSDU Size (B)
Max Delay (ms) PLR
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1 AP (0,0) STA1(11n) B (0,10) Data 100.00Constant, UDP 1500 N/A 0
2 AP (0,0) STA2(11ac) B (10,0) Data 250.00Constant, UDP TBD N/A 0
4 . 2 3 In-Home Entertainment Application (scenario #35)
4 . 2 .1 In-Home Entertainment Application without OBSS (scenario #3)
Test case to demonstrate in-home entertainment application with multiple flows with varied QoS requirements including lightly-compressed video.This scenario is derived from scenario #1 defind in 802.11n usage model document and modified in order to consider usage model 2a and 2.b (PVR’s in residential) defined in [12] as well.
141511 stationsOne TGac AP is source and sink.131410 STAs are souces and sinks. (STA2 is reserved)
Traffic from AP to STAsLightly-compressed videoCompressed video, compressed video, Internet file, VoIP, Internet streaming video, MP3 audio, VoIP
Traffic from STAs to APCompressed video, VoD control channel, VoIP, video console, Internet entertainment, VoIPconsole to Internet
Traffic STAs to STAsLocal file transfer, video phone, controller to console, compressed video, contents download
PHY channel for each linkChannel model type applied : TModel CBD
Only channel model B’s or mixing B’s and D’s for more realistic scenario Channel model break point between LOS and NLOS: unchanged from 802.11n(unchanged from 802.11n scenarios)Distance between STAs can be used to select between LOS and NLOS according to the breakpoint distance defined in 802.11n channel model document [8].e.g.) 5 meters for model B and 10 meters for model D
Shadowing term is TBD 0dB (unchanged from 802.11n scenarios)In 802.11n channel model document [8], shadow fading std. dev. is specified for each channel model between 3dB and 6dB at page 7. But, Iinn 802.11n usage model document [3], shadowing term applied to all the 802.11n simulation scenarios is set to 0dB for generating a channel realization at page 22.
Locations of stationsFixed locations (unchagend from 802.11n scenario #1)
Meet requirements specified in PLR and Max. Delay per each flowTotal throughput condition
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It is available to offer infinite load for this scenario with TCP flows.Total throughput (about minimum 465386Mbps) is not a heavy burden similarcompared to that of scenario #1 defined in 802.11n usage model document (about 64Mbps).
Table 5. Flows in scenario #3
Flow No.
STAs(Source/Sink)
Source Location(meters)
Sink Location(meters)
Channel Model
Application(Forward Traffice / Backward Traffic)
Application Load (Mbps)(Forward / Backward)
Rate Distribution(Forward / Backward)
MSDU Size (B)(Forward / Backward)
Max. Delay (ms)(Forward / Backward)
Max. PLR(Forward / Backward)
1 AP / STA1 (0,0) (0,5) CLC Video / VoD control channel 150.00 / 0.06
Constant, UDP / Constant UDP 1500 / 64 10 / 100 10^-7 / 10^-2
2note
STA7 / STA2 (7,-7) (-10,-10) CHD MPEG2 / control channel 20.00 / 0.06
Constant UDP / Constant UDP 1500 / 64 20 / 1003x10^-7 / 10^-2
3 note
STA8 / STA3 (-10,0) (5,0) CBlu-rayTM
/ control channel 50.00 / 0.06
Constant, UDP / Constant UDP 1500 / 64 20 / 100 10^-7 / 10^-2
4 note
STA9/ STA 4 (0,-10) (-7,7) CBlu-rayTM
/ control channel 50.00 / 0.06
Constant, UDP / Constant UDP 1500 / 64 20 / 100 10^-7 / 10^-2
5 AP / STA4 (0,0) (-7,7) CInternet file / clicking on web link
Max. 10Mbps /
0.256TCP / TCP 300 / 64 Inf. / Inf. N/A / N/A
6 AP / STA10 (0,0) (10,10) C
HD MPEG2 / video console + Internet entertainment 20.00 / 1.00
Constant UDP / Constant UDP 1500 / 512 20 / 503x10^-7 / 10^-4
7 AP / STA11 (0,0) (10,5) C MP3 audio 0.13 / UDP 418 200 10^-4
8STA11/STA10 (10,5) (10,10) C Controller to Console 0.50Constant, UDP 50 16 10^-4
9 AP / STA12 (0,0) (20,0) C VoIP / VoIP 0.096 / 0.096UDP / UDP 120 / 120 30 / 305% / 5%10 AP / STA13 (0,0) (0,20) C VoIP / VoIP 0.096 / 0.096UDP / UDP 120 / 120 30 / 305% / 5%11 AP / STA14 (0,0) (0,-20) C VoIP / VoIP 0.096 / 0.096UDP / UDP 120 / 120 30 / 305% / 5%
12STA4 / STA10 (-7,7) (10,10) C Local file transfer Max. 1Gbps TCP 300 Inf. N/A
13 STA5 / STA6 (-15,0) (0,-15) CVideo Phone / Video Phone 0.50 / 0.50
Constant, UDP / Constant UDP 512 / 512 100 / 100 10^-2 / 10^-2
Total Throughput Note) Display/video flows are specified as logical links so that they may either be simulated as direct link setup or relay via the AP. Note) Logical link in this scenario can be seen with topology in Support document.
Table 6. Flows in scenario #3
Flow No.
STAs(Source/Sink)Source
Source Location(meters)
Sink Location(meters)
Channel Model
Application(Forward Traffice / Backward TrafficApplication)
Bit Rate Application Load (Mbps)(Forward / Backward)
Rate Distribution(Forward / Backward)
MSDU Size (B)(Forward / Backward)
Max. Delay (ms)(Forward / Backward)
Max. PLR(Forward / Backward)
Downlink Flows
1 AP / STA1 (0,0) (0,5) C
Blu-rayTM
/ control channelLC Video / VoD control channel
50.00 / 0.06150.00 / 0.06
Constant, UDP / Constant UDP
TBD1500 / 64 10 / 100 10^-7 / 10^-2
2note
STA7 / STA2AP (07,0-7) (-10,-10) C
HD MPEG2 / control channel 20.00 / 0.06
Constant UDP / Constant UDP 1500 / 64 20 / 100 3x10^-7 / 10^-2
3 note
2
AP / STA3STA8 / STA3AP
(0,0)(0,0-10,0) (5,0) C
Blu-rayTM
/ control channel LC Video
150.0050.00 / 0.06
Constant, UDP / Constant UDP
TBD1500 / 64 1020 / 100 10^-7 / 10^-2
43
note
STA9/ STA 4AP (0,-100,0) (-7,7) C
Blu-rayTM
/ control channel Blu-rayTM
LC Video
150.0050.00 / 0.06
Constant, UDP / Constant UDP
TBD1500 / 64 1020 / 100 10^-7 / 10^-2
54 AP / STA4 (0,0) (-7,7) CInternet file / clicking on web link
Minimum 1.00Max.
10Mbps / 0.256 TCP / TCP 300 / 64 Inf. / Inf. N/A / N/A
65 AP / STA10AP
(0,0)(0,0) (10,10)(7,-7)(20,0)
CC HD MPEG2 / VoD control
channelVoIPvideo console + Internet
20.00 / 1.000.100.06
Constant UDP / Constant
UDPConstant, UDP
1500 / 51212064
20 / 5030100
3x10^-7 / 10^-4 5%10^-2
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entertainment
76AP /
STA11AP (0,0)(0,0)
(10,5)(-10,0)
(0,20) CCMP3 audio VoD
control channelVoIP 0.13 / 0.100.06UDPConstant,
UDP 418 12064 200 30100 10^-4 5%10^-28STA11/STA10 (10,5) (10,10) C Controller to Console 0.50 Constant, UDP 50 16 10^-4
87 AP(0,0)(0,-10)(0,-20) C
VoD control channelVoIP 0.100.06 Constant, UDP 12064 30100 5%10^-2
98 AP(0,0) (10,10) CInternet Streaming video HD MPEG2 2.0020.00
UDPConstant, UDP 5121500 20020
10^-410^-7
109 AP (0,0) (10,5) C MP3 audio 0.13UDP 418 200 10^-4911 AP / STA12 (0,0) (20,0) C VoIP / VoIP 0.096 / 0.096 UDP / UDP 120 / 120 30 / 30 5% / 5%1012 AP / STA13 (0,0) (0,20) C VoIP / VoIP 0.096 / 0.096 UDP / UDP 120 / 120 30 / 30 5% / 5%1113 AP / STA14 (0,0) (0,-20) C VoIP / VoIP 0.096 / 0.096 UDP / UDP 120 / 120 30 / 30 5% / 5%
12 STA4 / STA10 (-7,7) (10,10) C Local file transfer Max. 1Gbps TCP 300 Inf. N/A
Uplink Flows
131410
STA5 / STA6STA1
(-15,0) (0,5)
(0,-15) (0,0) CC
Video Phone / Video PhoneVoD control channel 0.50 / 0.500.06
Constant, UDP / Constant UDPConstant, UDP 512 / 51264
100 / 100100
10^-2 / 10^-2 10^-2
15 STA2 (-10,-10) (0,0) C control channel 0.06 Constant UDP 64 100 10^-2
1611 STA3 (5,0) (0,0) C VoD control channel 0.06Constant, UDP 64 100 10^-2
17 STA4 (-7,7) (0,0) C control channel 0.06 Constant UDP 64 100 10^-2
1812 STA7(7,-7)(20,0) (0,0) C
HD MPEG2Blu-rayTM
VoIP 0.1050.00 Constant, UDP 1201500 3020 5%10^-7
1913 STA8(-10,0)(0,20) (0,0) C Blu-rayTM
VoIP 0.1050.00 Constant, UDP 1201500 3020 5%10^-7
2014 STA9(0,-10)(0,-20) (0,0) C
Blu-rayTM
HD MPEG2VoIP 0.1020.00 Constant, UDP 1201500 3020 5%3x10^-7
2115 STA10(10,10) (0,0) C
Video console + Internet entertainmentConsole to Internet 1.00 Constant, UDP 512 50 10^-4
22 STA12 (20,0) (0,0) C VoIP 0.096 UDP 120 30 5%
23 STA13 (0,20) (0,0) C VoIP 0.096 UDP 120 30 5%
24 STA14 (0,-20) (0,0) C VoIP 0.096 UDP 120 30 5% STA to STA Flows
2516 STA4 (-7,7) (10,10) C Local file transfer
Minimum 10.00
Max. 1Gbps TCP 300 Inf. N/A2617 STA5 (-15,0) (0,-15) C Video Phone 0.50Constant, UDP 512 100 10^-22718 STA6 (0,-15) (-15,0) C Video Phone 0.50Constant, UDP 512 100 10^-2
2819 STA11 (10,5) (10,10) C Controller to Console 0.50Constant, UDP 50 16 10^-4Total ThroughputThruput
Minimum 385.93466.35
Note) Display/video flows are specified as logical links so that they may either be simulated as direct link setup or relay via the AP. Note) Logical link in this scenario can be seen with topology in Support document.Note) Limited number of antennas for some devices are exemplary, to allow for proposal comparison.Note) STA2 is reserved.
4.2.2 In-Home Entertainment Application with OBSS (scenario #4)
Test case to demonstrate in-home entertainment application with multiple flows with varied QoS requirements including compressed video and OBSS.
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3 BSSs: A, B and CBSS A is identical to the BSS in TGac scenario #3 with one AP and 13 associated STAsBSS B is an 802.11ac BSS with one AP and 3 associated STAsBSS C is lower 40MHz 802.11n BSS with one AP and 3 associated STAs
Each AP is source and sink for its associated STAsSpectrum positions for BSSs A, B, and C in Scenario #4 is shown in Fig. 1.
40MHz 40MHz
Spectrum of BSS A (11ac , 80MHz)
Spectrum of BSS B(11ac , 80MHz)Spectrum of
BSS C(11n , 40MHz)
frequency
Primary Channel of BSS C
(lower channel)
80MHz
20MHz
Figure 1: Spectrum positions for BSSs A, B, and C (Case 1).
Traffic from AP to STAsCompressed video, Internet file, Internet streaming video, MP3 audio, VoIP
Traffic from STAs to APCompressed video, VoD control channel, video console, Internet entertainment, VoIP
Traffic STAs to STAsLocal file transfer, video phone, controller to console, compressed video, content download
PHY channel for each link within a BSS or between BSSsChannel model type applied : Model C for BSS A and BSS B. TGn Model C for BSS C.Channel model type for link between different BSSs: Model C between BSS A and BSS B. TGn Model C between BSS C and BSS A.
Channel model break point between LOS and NLOS: unchanged from 802.11nShadowing term is set to TBD dB.
In 802.11n channel model document [8], shadow fading std. dev. is specified for each channel model between 3dB and 6dB at page 7. But, in 802.11n usage model document [3], shadowing term applied to all the 802.11n simulation scenarios is set to 0dB for generating a channel realization at page 22.
PHY channel for each link between BSSChannel model break point between LOS and NLOS: unchanged from 802.11n
Locations of stationsLocations for BSS A are unchagend from TGac scenario #3.Relative locations for BSS B are taken from TGac scenario #3 that all STAs except for STA1, STA4, and STA10 are deleted and re-numbered to STA 15, STA 16 and STA17. Locations of BSS B are translated by (xb, yb) = (40,0) from those of BSS A. Location for BSS B are listed in Table 67. Relative locations for BSS C are taken from TGac scenario #3 that all STAs except for STA1, STA4, and STA10 are deleted and re-numbered to STA 18, STA 19 and STA20. Locations for BSS C are translated by (xc, yc) = (-40,0) from those of BSS A. Location for BSS C are listed in Table 78.
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Walls: TBD.Room walls are introduced at x= -39 and x= 41. Attenuation factor of each room wall is set to 3 dB.Attenuation factor of each outside wall is set to 10 dB.
Meet requirements specified in PLR and Max. Delay per each flowTotal throughput conditionIt is available to offer infinite load for this scenario with TCP flows.
Table 6. Flows at BSS A in scenario #4
Flow No.
STAs(Source/Sink)
Source Location(meters)
Sink Location(meters)
Channel Model
Application(Forward Traffice / Backward Traffic)
Application Load (Mbps)(Forward / Backward)
Rate Distribution(Forward / Backward)
MSDU Size (B)(Forward / Backward)
Max. Delay (ms)(Forward / Backward)
Max. PLR(Forward / Backward)
1 AP / STA1 (0,0) (0,5) CBlu-rayTM
/ control channel 50.00 / 0.06
Constant, UDP / Constant UDP 1500 / 64 20 / 100 10^-7 / 10^-2
2note
STA7 / STA2 (7,-7) (-10,-10) CHD MPEG2 / control channel 20.00 / 0.06
Constant UDP / Constant UDP 1500 / 64 20 / 1003x10^-7 / 10^-2
3 note
AP / STA3 (0,0) (5,0) CBlu-rayTM
/ control channel 50.00 / 0.06
Constant, UDP / Constant UDP 1500 / 64 20 / 100 10^-7 / 10^-2
4 note
STA9/ STA 4 (0,-10) (-7,7) CBlu-rayTM
/ control channel 50.00 / 0.06
Constant, UDP / Constant UDP 1500 / 64 20 / 100 10^-7 / 10^-2
5 AP / STA4 (0,0) (-7,7) CInternet file / clicking on web link
Max. 10Mbps /
0.256TCP / TCP 300 / 64 Inf. / Inf. N/A / N/A
6 AP / STA10 (0,0) (10,10) C
HD MPEG2 / video console + Internet entertainment 20.00 / 1.00
Constant UDP / Constant UDP 1500 / 512 20 / 503x10^-7 / 10^-4
7 AP / STA11 (0,0) (10,5) C MP3 audio 0.13 / UDP 418 200 10^-4
8STA11/STA10 (10,5) (10,10) C Controller to Console 0.50Constant, UDP 50 16 10^-4
9 AP / STA12 (0,0) (20,0) C VoIP / VoIP 0.096 / 0.096UDP / UDP 120 / 120 30 / 305% / 5%10 AP / STA13 (0,0) (0,20) C VoIP / VoIP 0.096 / 0.096UDP / UDP 120 / 120 30 / 305% / 5%11 AP / STA14 (0,0) (0,-20) C VoIP / VoIP 0.096 / 0.096UDP / UDP 120 / 120 30 / 305% / 5%
12STA4 / STA10 (-7,7) (10,10) C Local file transfer Max. 1Gbps TCP 300 Inf. N/A
13 STA5 / STA6 (-15,0) (0,-15) CVideo Phone / Video Phone 0.50 / 0.50
Constant, UDP / Constant UDP 512 / 512 100 / 100 10^-2 / 10^-2
Total ThroughputNote) Display/video flows are specified as logical links so that they may either be simulated as direct link setup or relay via the AP. Note) Logical link in this scenario can be seen with topology in Support document.
Table 67. Flows at BSS B in scenario #4
Flow No.
STAs(Source/Sink)
Source Location(meters)
Sink Location(meters)
Channel Model
Application(Forward Traffice / Backward Traffic)
Application Load (Mbps)(Forward / Backward)
Rate Distribution(Forward / Backward)
MSDU Size (B)(Forward / Backward)
Max. Delay (ms)(Forward / Backward)
Max. PLR(Forward / Backward)
14AP B / STA15 (xb,yb) (xb,5+yb) C
Blu-rayTM
/ control channel 50.00 / 0.06
Constant, UDP / Constant UDP 1500 / 64 20 / 100 10^-7 / 10^-2
15STA16 / STA17
(-7+xb, 7+yb)
(10+xb,10+yb) C Local file transfer Max. 1Gbps TCP 1500 Inf. N/A
Total Throughput
Table 78. Flows at BSS C in scenario #4 Flow No.
STAs(Source/Sink)
Source Location(meters)
Sink Location(meters)
Channel Model
Application(Forward Traffice / Backward Traffic)
Application Load (Mbps)(Forward /
Rate Distribution(Forward / Backward)
MSDU Size (B)(Forward /
Max. Delay (ms)(Forward /
Max. PLR(Forward /
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Backward) Backward) Backward) Backward)
16AP C / STA18 (xc,yc) (xc,5+yc) C
HD-MPEG2 / VoD control channel 20/0.06
Constant UDP / Constant UDP 1500/64 20/100 3x10^-7 / 10^-2
17STA19 / STA20
(-7+xc, 77+yc)
(10+xc, 10+yc) C Content download Max. 10MbpsTCP 1500 Inf. N/A
Total Throughput
0-20-40-60 604020 x-20
20
0
y
BSS A BSS BBSS C
APSTA
STA 18STA 19STA 20
STA 15STA 16
STA 17
room walloutside wall
STA 1
STA 2STA 7
STA 5
STA 4STA 10
STA 11
STA 12
STA 13
STA 9
STA 6
STA 14
AP STA 3
Figure 2: AP and STA locations for scenario #4.
Note) dotted lines and solid lines denote room walls and outside walls, respectively.
4 . 3 4 Enterprise Network (scenario #46)
4.3.1 Enterprise Network without OBSS (scenario #54)
Test case to demonstrate enterprise network application with large number of flows (over 3040).This scenario is derived from scenario #4 defind in 802.11n usage model document.
2131 stationsOne TGac AP is source and sink.2030 STAs are souces and sinks.
Traffic from AP to STAsInternet file, video conferencing, Internet streaming video + MP3, local file transferVoIP
Traffic from STAs to APClicking on web linkClick, file upload, video conferencing, VoIP
PHY channel for each linkChannel model type applied : TBModel DD
Only channel model D’s or mixing D’s and B’s for more realistic scenarioChannel model break point between LOS and NLOS : unchanged from
802.11n(unchanged from 802.11n scenarios)
Submission page 21 Peter (Ralink) and Minho (ETRI)
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Distance between STAs can be used to select between LOS and NLOS according to the breakpoint distance defined in 802.11n channel model document [8].e.g.) 5 meters for model B and 10 meters for model D
Shadowing term is TBD 0dB (unchanged from 802.11n scenarios)In 802.11n channel model document [8], shadow fading std. dev. is specified for each channel model between 3dB and 6dB at page 7.But in 802.11n usage model document [3], shadowing term applied to all the 802.11n simulation scenarios is set to 0dB for generating a channel realization at page 22.
Locations of stationsFixed lLocations are (unchagend from 802.11n scenario #4, excepting that STAs 3, 6, 9, … , 30 are deleted (see Figure 1) and the surviving STAs are not renumbered.)
Meet requirements specified in PLR and Max. Delay per each flowTotal throughput condition
It is available to offer infinite load for this scenario with TCP flows.
-10 -5 0 5 10
-10
-8
-6
-4
-2
0
2
4
6
8
10
1
2
3
4
5
6
7
8
9
10
11 12
13
14 15
16
17
18
19
20 21
22
23
24
25
26
27
28
29 30
11n STA locationsDeleted 11ac STA locations
Figure 13: STA locations for scenario #45.
Total throughput (minimum about 460740Mbps) is not a heavy burden compared to that of scenario #4 defined in 802.11n usage model document (about 460Mbps).
Table 789. Flows in scenario #54
.Flow No. Source
Source Location(meters) Sink
Sink Location(meters) Channel Application
Bit RateApplication Load (Mbps)
Rate Distribution
MSDU Size (B)
Max. Delay (ms)
Max. PLR
Downlink Flows
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1 AP (0,0) STA1 (5,-9..5) D Internet fileMinimum 1.00Max. 10Mbps TCP 300 Inf. N/A
2 AP (0,0) STA2 (3..5,7..5) D Internet fileMinimum 1.00Max. 10Mbps TCP 300 Inf. N/A
3 AP (0,0) STA3 (7..5,-9..5) D Internet fileMinimum 1.00Max. 10Mbps TCP 300 Inf. N/A
4 AP (0,0) STA4(-4.5-4,0..5) D Internet file
Minimum 1.00Max. 10Mbps TCP 300 Inf. N/A
5 AP (0,0) STA5 (-1..5,6) D Internet fileMinimum 1.00Max. 10Mbps TCP 300 Inf. N/A
6 AP (0,0) STA6 (-5..5,4..5) D
Internet file, downloading large email attachments
Minimum 10.00Max. 10Mbps TCP 300 Inf. N/A
7 AP (0,0) STA7 (-9,-5) D Video conferencing 1.00Constant, UDP 512 100 10^-4
8 AP (0,0) STA8 (-8..5,8..5) D Video conferencing 1.00Constant, UDP 512 100 10^-4
9 AP (0,0) STA9 (7,-7..5) DInternet Streaming video + MP3 audio 2.00UDP 512 200 10^-4
10 AP (0,0) STA10 (-3,0..5) DInternet Streaming video + MP3 audio 2.00UDP 512 200 10^-4
11 AP (0,0) STA11 (-0..5,8) D Local File transfer
Minimum 30Mbps50.00
Max. 1Gbps TCP 1500 Inf.N/A
12 AP (0,0) STA12 (7,7) D Local File transfer
Minimum 30Mbps 50.00
Max. 1Gbps TCP 1500 Inf.N/A
13 AP (0,0) STA13 (-4,-4) D Local File transfer
Minimum 30Mbps 50.00
Max. 1Gbps TCP 1500 Inf.N/A
14 AP (0,0) STA14 (7..5,-1) D Local File transfer
Minimum 30Mbps 50.00
Max. 1Gbps TCP 1500 Inf.N/A
15 AP (0,0) STA15 (3,-0..5) D Local File transfer
Minimum 30Mbps 50.00
Max. 1Gbps TCP 1500 Inf.N/A
16 AP (0,0) STA16 (8,-6) D Local File transfer
Minimum 30Mbps 50.00
Max. 1Gbps TCP 1500 Inf.N/A
17 AP (0,0) STA17 (0,-7..5) D Local File transfer
Minimum 30Mbps 50.00
Max. 1Gbps TCP 1500 Inf.N/A
18 AP (0,0) STA18 (10,0..5) D Local File transfer
Minimum 30Mbps 50.00
Max. 1Gbps TCP 1500 Inf.N/A
19 AP (0,0) STA19(-2..5,-4..5) D Local File transfer
Minimum 30Mbps 50.00
Max. 1Gbps TCP 1500 Inf.N/A
20 AP (0,0) STA20 (0..5,-2) D Local File transfer
M inimum 30Mbps 50.00
Max. 1Gbps TCP 1500 Inf.N/A
21 AP (0,0) STA25 (3..5,-5) D VoIP 0.10Constant, UDP 120 305%
22 AP (0,0) STA26 (9,9..5) D VoIP 0.10Constant, UDP 120 305%
23 AP (0,0) STA27 (-6,2..5) D VoIP 0.10Constant, UDP 120 305%
24 AP (0,0) STA28 (-8,-5..5) D VoIP 0.10Constant, UDP 120 305%
25 AP (0,0) STA29 (1.5,3..5) D VoIP 0.10Constant, UDP 120 305%
26 AP (0,0) STA30 (9..5,3..5) D VoIP 0.10Constant, UDP 120 305%
Flow No.
Source Source Location
Sink Sink Location
Application Application LoadBit Rate
Rate Distribution
MSDU Size (B)
Max Delay
PLR
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(meters) (meters) (Mbps) (ms) Uplink Flows
27 STA1 (5,-9..5) AP (0,0) DClicking on web linkClick 0.256 TCP 64 Inf. N/A
28 STA2 (3..5,7..5) AP (0,0) DClicking on web linkClick 0.256 TCP 64 Inf. N/A
29 STA3 (7..5,-9..5) AP (0,0) DClicking on web linkClick 0.256 TCP 64 Inf. N/A
30 STA4 (-4,.5,0..5) AP (0,0) D File UploadMinimum 5Max. 1Gbps TCP 1000 Inf. N/A
31 STA5 (-1..5,6) AP (0,0) D File UploadMinimum 10Max. 1Gbps TCP 1500 Inf. N/A
32 STA6 (-5..5,4..5) AP (0,0) DClicking on web linkClick 0.256 TCP 64 Inf. N/A
33 STA7 (-9,-5) AP (0,0) D Video conferencing 1.00Constant, UDP 512 100 10^-4
34 STA8 (-8..5,8..5) AP (0,0) D Video conferencing 1.00Constant, UDP 512 100 10^-4
35 STA21 (-6..5,-3) AP (0,0) D File Upload
Minimum 30Mbps 50.00
Max. 1Gbps TCP 1500 Inf. N/A
36 STA22 (0,-4..5) AP (0,0) D File Upload
Minimum 30Mbps 50.00
Max. 1Gbps TCP 1500 Inf. N/A
37 STA23 (-1..5,7) AP (0,0) D File Upload
Minimum 30Mbps 50.00
Max. 1Gbps TCP 1500 Inf. N/A
38 STA24 (3,2..5) AP (0,0) D File Upload
Minimum 30Mbps 50.00
Max. 1Gbps TCP 1500 Inf. N/A
39 STA25 (3..5,-5) AP (0,0) D VoIP 0.10Constant, UDP 120 30 5%
40 STA26 (9,9..5) AP (0,0) D VoIP 0.10Constant, UDP 120 30 5%
41 STA27 (-6,2..5) AP (0,0) D VoIP 0.10Constant, UDP 120 30 5%
42 STA28 (-8,-5..5) AP (0,0) D VoIP 0.10Constant, UDP 120 30 5%
43 STA29 (1..5,3..5) AP (0,0) D VoIP 0.10Constant, UDP 120 30 5%
44 STA30 (9..5,3..5) AP (0,0) D VoIP 0.10Constant, UDP 120 30 5%
Total Measured ThroughputThruput
Minimum 460.22Mbps 740.2
Note) Limited number of antennas for some devices are exemplary, to allow for proposal comparison.
Flow No. Source
Source Location(meters) Sink
Sink Location(meters) Channel Application
Application Load (Mbps)
Rate Distribution
MSDU Size (B)
Max. Delay (ms)
Max. PLR
Downlink Flows
1 AP (0,0) STA1 (5,-9.5) D Internet file Max. 10MbpsTCP 300 Inf. N/A
2 AP (0,0) STA2 (3.5,7.5) D Internet file Max. 10MbpsTCP 300 Inf. N/A
3 AP (0,0) STA4 (-4.5,0.5) D Internet file Max. 10MbpsTCP 300 Inf. N/A
4 AP (0,0) STA5 (-1.5,6) D Internet file Max. 10MbpsTCP 300 Inf. N/A
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5 AP (0,0) STA7 (-9,-5) DVideo conferencing 1.00
Constant, UDP 512 100 10^-4
6 AP (0,0) STA8 (-8.5,8.5) DVideo conferencing 1.00
Constant, UDP 512 100 10^-4
7 AP (0,0) STA10 (-3,0.5) D
Internet Streaming video + MP3 audio 2.00UDP 512 200 10^-4
8 AP (0,0) STA11 (-0.5,8) DLocal File transfer Max. 1GbpsTCP 1500 Inf.N/A
9 AP (0,0) STA13 (-4,-4) DLocal File transfer Max. 1GbpsTCP 1500 Inf.N/A
10 AP (0,0) STA14 (7.5,-1) DLocal File transfer Max. 1GbpsTCP 1500 Inf.N/A
11 AP (0,0) STA16 (8,-6) DLocal File transfer Max. 1GbpsTCP 1500 Inf.N/A
12 AP (0,0) STA17 (0,-7.5) DLocal File transfer Max. 1GbpsTCP 1500 Inf.N/A
13 AP (0,0) STA19 (-2.5,-4.5) DLocal File transfer Max. 1GbpsTCP 1500 Inf.N/A
14 AP (0,0) STA20 (0.5,-2) DLocal File transfer Max. 1GbpsTCP 1500 Inf.N/A
15 AP (0,0) STA25 (3.5,-5) D VoIP 0.10Constant, UDP 120 305%
16 AP (0,0) STA26 (9,9.5) D VoIP 0.10Constant, UDP 120 305%
17 AP (0,0) STA28 (-8,-5.5) D VoIP 0.10Constant, UDP 120 305%
18 AP (0,0) STA29 (1.5,3.5) D VoIP 0.10Constant, UDP 120 305%
Flow No. Source
Source Location(meters) Sink
Sink Location(meters) Application
Application Load (Mbps)
Rate Distribution
MSDU Size (B)
Max Delay (ms) PLR
Uplink Flows
19 STA1 (5,-9.5) AP (0,0) DClicking on web link 0.256 TCP 64 Inf. N/A
20 STA2 (3.5,7.5) AP (0,0) DClicking on web link 0.256 TCP 64 Inf. N/A
21 STA4 (-4.5,0.5) AP (0,0) D File Upload Max. 1Gbps TCP 1000 Inf. N/A
22 STA5 (-1.5,6) AP (0,0) D File Upload Max. 1Gbps TCP 1500 Inf. N/A
23 STA7 (-9,-5) AP (0,0) DVideo conferencing 1.00
Constant, UDP 512 100 10^-4
24 STA8 (-8.5,8.5) AP (0,0) DVideo conferencing 1.00
Constant, UDP 512 100 10^-4
25 STA22 (0,-4.5) AP (0,0) D File Upload Max. 1Gbps TCP 1500 Inf. N/A
26 STA23 (-1.5,7) AP (0,0) D File Upload Max. 1Gbps TCP 1500 Inf. N/A
27 STA25 (3.5,-5) AP (0,0) D VoIP 0.10Constant, UDP 120 30 5%
28 STA26 (9,9.5) AP (0,0) D VoIP 0.10Constant, UDP 120 30 5%
29 STA28 (-8,-5.5) AP (0,0) D VoIP 0.10Constant, UDP 120 30 5%
30 STA29 (1.5,3.5) AP (0,0) D VoIP 0.10Constant, UDP 120 30 5%
Total Measured Throughput
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4.3.2 Enterprise Network with OBSS (scenario #56)
Test case to demonstrate enterprise network application with large number of flows and OBSS.This scenario is derived from scenario #4 defined in 802.11n usage model document.
3 BSSs: A, B and CBSS A is identical to the BSS in 802.11ac scenario #4 with one AP and 20 associated STAsBSS B is an 802.11ac BSS using the same bandwidth as BSS A with one AP and 5 associated STAsBSS C is a 20/40MHz 802.11n BSS with one AP and 5 associated STAs
Each AP is source and sink for its associated STAsTraffic from AP to STAs
Internet file, video conferencing, Internet streaming video + MP3, local file transferVoIP
Traffic from STAs to APClicking on web link, file upload, video conferencing, VoIP
PHY channel for each linkChannel model type applied: Model D
Channel model break point between LOS and NLOS : unchanged from 802.11n Shadowing term is TBD dB
In 802.11n channel model document [8], shadow fading std. dev. is specified for each channel model between 3dB and 6dB at page 7.But in 802.11n usage model document [3], shadowing term applied to all the 802.11n simulation scenarios is set to 0dB for generating a channel realization at page 22.
Locations of stations (see Figure )Locations for BSS A are unchanged from 802.11n scenario #4, excepting that STAs 3,6,9, … 30 are deleted (i.e. BSS A is identical to scenario #4)Locations for BSS B are taken from 802.11n scenario #4, with all STAs except 3,9,15,… 27 deleted and the AP and surviving STAs translated by (xb,yb) = (40,20).Locations for BSS C are taken from 802.11n scenario #4, with all STAs except 6,1218, … 30 deleted and the AP and surviving STAs translated by (xc,yc) = (-40,-20).
Bandwidth sensitivityIf BSS A is 40 MHz, then BSS C is deleted, leaving BSSs A and B.If BSS A is 80 MHz, then the scenario includes BSSs A, B and C
Parameters used by STAs within the BSS in 802.11ac scenario #4 should be reused in this scenarioMeet requirements specified in PLR and Max. Delay per each flowTotal throughput condition
It is available to offer infinite load for this scenario with TCP flows.
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-50 -40 -30 -20 -10 0 10 20 30 40 50-30
-20
-10
0
10
20
30
1
4
7
10
13 16
19 22 25 28
2 5
8 11
14
17
20
23 26
29
3 9
15 21
27
6 12
18 24 30
BSS A STA locationsBSS B STA locations assuming (xb,yb)=(40,20)BSS C STA locations assuming (xb,yb)=(-40,-20)
Figure 24: STA locations for scenario #65.
Table 8910. Flows in scenario #65
Flow No. Source
Source Location(meters) Sink
Sink Location(meters) Channel Application
Application Load (Mbps)
Rate Distribution
MSDU Size (B)
Max. Delay (ms)
Max. PLR
Downlink Flows in BSS A
1 AP A (0,0) STA1 (5,-9.5) D Internet file Max. 10MbpsTCP 300 Inf. N/A
2 AP A (0,0) STA2 (3.5,7.5) D Internet file Max. 10MbpsTCP 300 Inf. N/A
3 AP A (0,0) STA4 (-4.5,0.5) D Internet file Max. 10MbpsTCP 300 Inf. N/A
4 AP A (0,0) STA5 (-1.5,6) D Internet file Max. 10MbpsTCP 300 Inf. N/A
5 AP A (0,0) STA7 (-9,-5) DVideo conferencing 1.00
Constant, UDP 512 100 10^-4
6 AP A (0,0) STA8 (-8.5,8.5) DVideo conferencing 1.00
Constant, UDP 512 100 10^-4
7 AP A (0,0) STA10 (-3,0.5) D
Internet Streaming video + MP3 audio 2.00UDP 512 200 10^-4
8 AP A (0,0) STA11 (-0.5,8) DLocal File transfer Max. 1GbpsTCP 1500 Inf.N/A
9 AP A (0,0) STA13 (-4,-4) DLocal File transfer Max. 1GbpsTCP 1500 Inf.N/A
10 AP A (0,0) STA14 (7.5,-1) DLocal File transfer Max. 1GbpsTCP 1500 Inf.N/A
11 AP A (0,0) STA16 (8,-6) DLocal File transfer Max. 1GbpsTCP 1500 Inf.N/A
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12 AP A (0,0) STA17 (0,-7.5) DLocal File transfer Max. 1GbpsTCP 1500 Inf.N/A
13 AP A (0,0) STA19 (-2.5,-4.5) DLocal File transfer Max. 1GbpsTCP 1500 Inf.N/A
14 AP A (0,0) STA20 (0.5,-2) DLocal File transfer Max. 1GbpsTCP 1500 Inf.N/A
15 AP A (0,0) STA25 (3.5,-5) D VoIP 0.10Constant, UDP 120 305%
16 AP A (0,0) STA26 (9,9.5) D VoIP 0.10Constant, UDP 120 305%
17 AP A (0,0) STA28 (-8,-5.5) D VoIP 0.10Constant, UDP 120 305%
18 AP A (0,0) STA29 (1.5,3.5) D VoIP 0.10Constant, UDP 120 305%
Flow No. Source
Source Location(meters) Sink
Sink Location(meters) Application
Application Load (Mbps)
Rate Distribution
MSDU Size (B)
Max Delay (ms) PLR
Uplink Flows in BSS A
19 STA1 (5,-9.5) AP A (0,0) DClicking on web link 0.256TCP 64 Inf. N/A
20 STA2 (3.5,7.5) AP A (0,0) DClicking on web link 0.256TCP 64 Inf. N/A
21 STA4 (-4.5,0.5) AP A (0,0) D File Upload Max. 1Gbps TCP 1000 Inf. N/A
22 STA5 (-1.5,6) AP A (0,0) D File Upload Max. 1Gbps TCP 1500 Inf. N/A
23 STA7 (-9,-5) AP A (0,0) DVideo conferencing 1.00
Constant, UDP 512 100 10^-4
24 STA8 (-8.5,8.5) AP A (0,0) DVideo conferencing 1.00
Constant, UDP 512 100 10^-4
25 STA22 (0,-4.5) AP A (0,0) D File Upload Max. 1Gbps TCP 1500 Inf. N/A
26 STA23 (-1.5,7) AP A (0,0) D File Upload Max. 1Gbps TCP 1500 Inf. N/A
27 STA25 (3.5,-5) AP A (0,0) D VoIP 0.10Constant, UDP 120 30 5%
28 STA26 (9,9.5) AP A (0,0) D VoIP 0.10Constant, UDP 120 30 5%
29 STA28 (-8,-5.5) AP A (0,0) D VoIP 0.10Constant, UDP 120 30 5%
30 STA29 (1.5,3.5) AP A (0,0) D VoIP 0.10Constant, UDP 120 30 5%
Downlink Flows in BSS B
31 AP B (xb,xb) STA3 (7.5+xb, -9.5+yb) D Internet file Max. 10Mbps TCP 300 Inf. N/A
32 AP B (xb,xb) STA9 (7+xb, -7.5+yb) D
Internet Streaming video + MP3 audio 2.00UDP 512 200 10^-4
33 AP B (xb,xb) STA15 (3+xb, -0.5+yb) DLocal File transfer Max. 1Gbps TCP 1500 Inf. N/A
34 AP B (xb,xb) STA27 (-6+xb, 2.5+yb) D VoIP 0.10Constant, UDP 120 30 5%
Uplink Flows in BSS B
35 STA3 (7.5+xb, -9.5+yb) AP B (xb,xb) DClicking on web link 0.256TCP 64 Inf. N/A
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36 STA21 (-6.5+xb, -3+yb) AP B (xb,xb) D File Upload Max. 1Gbps TCP 1500 Inf. N/A
37 STA27 (-6+xb, 2.5+yb) AP B (xb,xb) D VoIP 0.10Constant, UDP 120 30 5%
Downlink Flows in BSS C
38 AP C (xc,yc) STA6 (-5.5+xc,4.5+yc) D
Internet file, downloading large email attachments Max. 10Mbps TCP 300 Inf. N/A
39 AP C (xc,yc) STA12 (7+xc,7+yc) DLocal File transfer Max. 1Gbps TCP 1500 Inf. N/A
40 AP C (xc,yc) STA18 (10+xc,0.5+yc) DLocal File transfer Max. 1Gbps TCP 1500 Inf. N/A
41 AP C (xc,yc) STA30 (9.5+xc,3.5+yc) D VoIP 0.10Constant, UDP 120 30 5%
Uplink Flows in BSS C
42 STA6 (-5.5+xc,4.5+yc) AP C (xc,yc) DClicking on web link 0.256TCP 64 Inf. N/A
43 STA24 (3+xc,2.5+yc) AP C (xc,yc) D File Upload Max. 1Gbps TCP 1500 Inf. N/A
44 STA30 (9.5+xc,3.5+yc) AP C (xc,yc) D VoIP 0.10Constant, UDP 120 30 5%
Total Measured Throughput
4 . 5 4 Comparison Criteria
MAC SAP throughput (goodput)Aggregated throughput (downlink + uplink + STA-to-STA)Throughput of each flow in the simulation scenario
Packet Loss Rate for each flow in the simulation scenarioLost packets includePackets that exceed maximum latency requirementPackets that are dropped after exceeding maximum number of re-tries
Specify number of antennas for each STA used in the simulation scenarioSpecify number of 20 MHz channels used in the simulation scenario
Note) It is encouraged that TGac technology proposals describe its impact on OBSS TGac proposals shall explain how it meetssupports OBSS operation. requirement R12 (OBSS operation).
4 . 6 5 Results Presentation Format
e.g.) for scenario #3
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Table 9 8101. Results presentation format
Flow No.
STAs(Source/Sink)
Application(Forward Traffice / Backward Traffic)
Application Load (Mbps)(Forward / Backward)
Rate Distribution(Forward / Backward)
Max. Delay (ms)(Forward / Backward)
PLR(Forward / Backward)
Pass or Fail (Forward / Backward)
Latency Compliant (%) (Forward / Backward)
Measured Throughput (Mbps) (Forward / Backward)
1 AP / STA1
LC Video / VoD control channelBlu-rayTM
/ control channelLC Video / VoD control channel
150.00 / 0.0650.00 /
0.06150.00 / 0.06
Constant, UDP / Constant UDP 10 / 100
2note
STA7 / STA2HD MPEG2 / control channel 20.00 / 0.06
Constant UDP / Constant UDP 20 / 100
3 note
AP / STA3STA8 / STA3
Blu-rayTM
/ control channel 50.00 / 0.06
Constant, UDP / Constant UDP 20 / 100
4 note
STA9/ STA 4Blu-rayTM
/ control channel 50.00 / 0.06
Constant, UDP / Constant UDP 20 / 100
5 AP / STA4Internet file / clicking on web link
Max. 10Mbps /
0.256TCP / TCP Inf. / Inf.
6 AP / STA10
HD MPEG2 / video console + Internet entertainment 20.00 / 1.00
Constant UDP / Constant UDP 20 / 50
7 AP / STA11 MP3 audio 0.13 / UDP 2008 STA11/STA10 Controller to Console 0.50Constant, UDP 169 AP / STA12 VoIP / VoIP 0.096 / 0.096 UDP / UDP 30 / 3010 AP / STA13 VoIP / VoIP 0.096 / 0.096 UDP / UDP 30 / 3011 AP / STA14 VoIP / VoIP 0.096 / 0.096 UDP / UDP 30 / 30
12 STA4 / STA10 Local file transfer Max. 1Gbps TCP Inf.
13 STA5 / STA6Video Phone / Video Phone 0.50 / 0.50
Constant, UDP / Constant UDP 100 / 100
Total Given Throughput
Total Measured Throughput
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Flow No. Source Sink Application
Bit RateApplication Load (Mbps) Rate Distribution
Max Delay (ms) PLR Pass/Fail
Latency Compliant (%)
Measured Throughput (Mbps)
Downlink Flows 1 AP STA1 LC Video 150.00Constant, UDP 10 2 AP STA2 HD MPEG-2 20.00 Constant, UDP 2032 AP STA3 Blu-rayTM 50.00Constant, UDP 20 43 AP STA4 Blu-rayTM 50.00Constant, UDP 20
54 AP STA4 Internet file
Minimum 1.00Max.
10Mbps TCP Inf.
65 AP STA7VoD control channel 0.06Constant, UDP 100
76 AP STA8VoD control channel 0.06Constant, UDP 100
87 AP STA9VoD control channel 0.06Constant, UDP 100
98 AP STA10
Internet Streaming video HD-MPEG2 2.0020.00 UDPConstant, UDP 20020
109 AP STA11 MP3 audio 0.13UDP 200 11 AP STA12 VoIP 0.096 UDP 3012 AP STA13 VoIP 0.096 UDP 3013 AP STA14 VoIP 0.096 UDP 30 Uplink Flows
1410 STA1 APVoD control channel 0.06Constant, UDP 100
15 STA2 AP control channel 0.06 Constant, UDP 100
1611 STA3 APVoD control channel 0.06Constant, UDP 100
17 STA4 AP control channel 0.06 Constant, UDP 1001812 STA7 AP Blu-rayTM 50.00Constant, UDP 20 1913 STA8 AP Blu-rayTM 50.00Constant, UDP 20 2014 STA9 AP HD MPEG2 20.00Constant, UDP 20
2115 STA10 AP
Video console + Internet entertainment 1.00Constant, UDP 50
22 STA12 AP VoIP 0.096 UDP 30
23 STA13 AP VoIP 0.096 UDP 30
24 STA14 AP VoIP 0.096 UDP 30 STA to STA Flows
2516 STA4 STA10Local file transfer
Minimum 10.00Max.
1Gbps TCP Inf. 2617 STA5 STA6 Video Phone 0.50Constant, UDP 100 2718 STA6 STA5 Video Phone 0.50Constant, UDP 100
2819 STA11 STA10Controller to Console 0.50Constant, UDP 16 Total Given ThroughputThruput
Minimum 385.93
Total Measured Thruput 0.00
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5 . Summary of Functional Requirements
Table 10 912. Summary of functional requirementsRequirementNumber
Description Requirement Statement
Status of Requirement
Notes (informative)
R1 Operational in 5 GHz
TGac devices shall operate in 5GHz frequency band.
R21 Maximum multi-STA throughput
Support at least 1 Gbps at the top of the MAC SAP. utilizing no more than 80MHz of channel bandwidth in 5GHz band
R32 Maximum single link throughput
Support 500 Mbps throughput at the top of the MAC SAP utilizing no more than 80MHz of channel bandwidth in 5GHz band
R4 Spectrum efficiency
In the highest throughput mode, TGac devices shall achieve a spectral efficiency of at least 7.5 bps/Hz for the PSDU. The TGac amendment shall demonstrate a mode of operation that achieves a spectral efficiency of at least 12 bps/Hz for the PSDU.
R5 Support 802.11 QoS Enhancements support
The proposal shall support the QoS enhancements of the IEEE802.11-2007 within an TGac STA.
R6 Control of support for legacy STA from TGac AP
A TGac AP can be configured to reject or accept associations from 802.11a/n STAs
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R73 802.11a backward compatibility
TGac devicesamendment shall provide ensure backward compatibility with IEEE802.11a devices operating in the 5 GHz frequency band. .
R84 802.11n backward compatibility
TGac devicesamendment shall provideensure backward compatibility with IEEE802.11n devices operating in the 5 GHz frequency band
R95 Coexistence with 802.11a/n devices operating in 5GHz
TGac amendmentdevices shall provide provide mechanisms to enable coexistence and spectrum sharing between TGac and legacy IEEE802.11a/n devices. with IEEE802.11a/n devices operating in the same frequency band.
R10 Support of mobile devices
TGac mobile devices are not required to support requirement R3 (500 Mbps). However, they shall demonstrate a mode of operation that achieves a minimum throughput of 100 Mbps as measured at their MAC SAPs
R11 Enhanced power saving
The TGac amendment shall provide an enhanced power saving mechanism that results in a lower
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power consumption than typical 802.11n devices.
R12 OBSS operation
TGac devices shall provide a mechanism to enable fair channel access and bandwidth sharing with other devices operating in OBSS.
R13610 Compliance to PAR
The proposal complies with the PAR and 5 Criteria [1].
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6 . Support Documents
11-09-0838-0012-00ac-tgac-supporting-document-for-tgac-evaluation-methodology.ppt11-10-0078-01-00ac-supporting-document-for-wall-penetration-loss.ppt
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6 7 . References
1. 11-08-0807-04-0vht-below-6-ghz-par-nescom-form-plus-5cs2. 11-03-0813-13-000n-functional-requirements3. 11-03-0802-23-000n-usage-models4. 11-08-0307-01-0vht-on-the-feasibility-of-1gbps-for-various-mac-phy-architectures5. 11-08-0535-00-0vht-phy-and-mac-throughput-analysis-with-80-mhz-for-vht-below-6-ghz6. 11-09-0071-01-00ac-discussion-on-functional-requirements 7. 11-03-0814-31-000n-comparison-criteria8. 11-03-0940-04-000n-tgn-channel-models9. 11-09-0059-04-00ac-tgac-802.11ac-proposed-selection-procedure10. 11-09-0376-01-00ac-proposal-for-tgac-evaluation-methodology11. 11-09-0308-05812-00ac-tgac-channel-model-addendum-document12. 11-09-0161-02-00ac-802.11ac-usage-model-document13. 11-09-0980-01-00ac-change-edits-for-enterprise-simulation-scenario
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